Half of his eight to baenaed gollingham



(No Model.)

R. NEWTON. Steam Trap.

` No. 233,004.` A Patented Oct. 5,1880.

WITNESSES INVENTQR VM/@MM N.PETERS, PHnTnvLxTnoGRAPNEn. WASMINGTUN, D c.

l-Uwrrnn Starts Partnr Ottica..

ROBERT NEWTON, OE PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE- HALF OE HIS RIGHT TO BARNARD OOLLINGHAM, OF SAME PLAGE.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 233,004, dated October 5, 1880.

Application filed May 12, 1880.

To all lwhom it may concern Be it known that I, l-tonnn'r NEWTON, ot' the city and county ot' Providence, and State ot Rhode Island, have invented a new and useful Improvement in Steam-Traps; and I hereby declare that the following' is a full, clear, and exact description ot' the saine, ret'- erence being had to the accoml'ianying drawings, forming part ot' this spccitication.

rIhis invention has reference to an improvelncnt in a steam trap or device used to withdraw the water troni steam-pipes without the loss oi' steam.

The object of this invention is to expel the water of condensation from steam-pipes without loss otl steam automatically and prevent the entrance ot' water into the pipes from the steam-trap.

The invention relates more particularly to that class ot' steam-traps in which the pipe to be drained is connected with a hollow valvular spindle arranged in a box and supporting a tubular discharging' device operated by a' perforated iioat to open and close the valve or ports in said spindle; and the improvement herein claimed consists in a iiap or gate valve connected to said hollow or tubular discharging device within the tloat and operating automatically to prevent siphoning ofthe box or trap.-

Figure lis a sectional View ot' my improved steam-trap7 showing the tloat in the position,

occupied when .l the outlet is closed in solid lines, and also the position when open in broken lines. Fig. 2 is a sectional view of the hollow spindle through which the water is discharged, showing the ports and the bearing of the lioat and discharge-pipe. Fig. 3 is an enlarged sectional view of the outlet within the heat, showing the valve to prevent the entrance ot' water. Fig. 4 is a cross-scetion of the spindle, showing the ports in the spindle, and also the ports coiinecting` with the hollow arm ol' the loat.

In the drawings, A represents a box or case into which the water of condensation is to be discharged. B is the cover of the box A, and O is the discharge-pipe, by which the water is withdrawn at such a height as will maintain a fixed water-level within the box A.

(No model.)

t represents a hollow spindle, one end of which is closed, and near the closed end two ports, b b, are Iixed for the discharge of water.

The spindle a is iirmly secured to one side ot'the box and projects horizontally, so as to form a bearing for the disch arge-pipe and tioat. The hollow spindle also projects outside of the box A, and is provided with a screw-thread at a', by which the same is connected with the steam-pipe to be controlled.

c is a sleeve surrounding the end ofthe hollow spindle a. It is provided with two ports, d and c, and these ports are so situated that the port d will come first opposite to the lower one of the two ports b b in the spindle a, and the port e will be opposite the upper port, b, when the port d is nearly or quite open.

The object ot' this arrangement of giving a certain amount ot' lap to the port e is to discharge the water from the port d, but allow of the discharge ot' any air in the pipes after the water has been discharged.

fis a curved hollow arm, into which the water from the port d tlows. It is connected with or forms part of the sleeve c.

rIhe other end ofthe arm fis secured to the spherical iioat, and within the iioat is provided with the self-closing valve h, preferably a hinged gate-valve; but any other valve that will open and close readily can be used.

At the lower portion ot' the spherical iloat a small hole, t', is made, so that a limited quantity ot' water can enter the float and allow the same to sink gradually.

7c is a pipe inserted into the spherical float, so that its lower open end will'nearly reach the surface ot` the float. The npperend is bent so as to direct the discharged water and prevent it from striking the cover.

l is the curved air-discharge pipe, connected with the sleeve c and forming an outlet from the port 0.

The ope 1ation of the device is as follows: When the whole is connected with the steampipe to be drained, and water is placed in the box A up to the discharge-pipe or overiiow, the ioat will be at iirst in the position shown in solid lines in Fig. l, or rather a little above this position. A small quantity ot' Water will enter the iioat by the hole t, and the float will sink very slowly until the port d will connect with the lower port, I). The steam from the pipe or pipes will now enter the arm vfand pass into the spherical iioat, (taking for granted that no water has been eondensed,)

and this steam, by its pressure, will expel the water in the sphere by the small hole'f and the pipe 7c. The sphere being relieved of the weight of water will rise, shut off the steam by closing the lower port, and will commence to sink again by the water entering the sphere through the hole 'L'.

Considering that water has now been condensed in the pipe or pipes to be drained, when the sphereg has again descended enough to open the port the water will rush into the spherical oat and the iioat will sink rapidly, and when filled with water the pressure ot' steam following the water will discharge the same through the pipe 7c and the hole t',- and when all the water has been discharged the steam will empty the spherical ioat. it will rise and close the outlets, as before. and this device will so continue automatically to discharge the water from the pipes into the boX A, from whence it flows through the pipe C.

It will he seen that the small hole performs a most important function in the certain and gradual opening of the outlet-port.

In steam-traps ot' this construction, when the steam is shut oft' from the pipes which are used at nightthe condensation in the pipes is liable to produce a sufficient vacuum to draw the water from the box A into the pipes. To

prevent this I place the valve h on the end of 3 5 the discharge-pipe and provide lthe port e and outlet l. When, now, the float is sunk to or near the bottom no water can enter the arm f, while water can run from the same, and any air in the pipes can freely escape by the pipe Z.

' This steam-trap requires no adjustment, is not liable to derangement, and the movement ot' the sleeve c on the spindle t is so slight that it is not liable to wear. There is no pressure in the case A, as all the air or steam can freely escape bythe pipe D in the cover, or, it' preferred, in the side of' the boX A near the cover, in which case the cover can at any time be removed and the working observed.

Having thus described my in vention,\I claim as new and desire to secure by Letters Patent- In a steam-trap having a vessel, A, a tloat, g, provided with an openingnj, and dischargetnbe lc, and the hollow armf, connected with and vibrating upon a ported or valvular hollow spindle, a, the valve It, arranged within the oat upon the mouth of the arm f, all constructed and arranged substantially as and 6o for the purpose described.

ROBERT NEWTON. Witnesses:

JOSEPH A. MILLER, J. A. MILLER, Jr. 

